Cm security download in play store. 99€ Plus Grande Promotion de! Protection Antivirus tout- en- un. The original CM Security upgraded to the Security Master and redefined the scope of Phone Security: protects not only your android phone but also your privacy. Une Protection Proactive pour Smartphones. It automatically scans your device makes sure you have the latest in mobile security, so you can rest w click on Play for CM Security select first app from Google play store.